ホーム › Media.MediaFoundation › MFTGetInfo

MFTGetInfo

関数

指定したMFT変換器の名称や入出力型情報を取得する。

DLLMFPlat.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

// MFPlat.dll
#include <windows.h>

HRESULT MFTGetInfo(
    GUID clsidMFT,
    LPWSTR* pszName,   // optional
    MFT_REGISTER_TYPE_INFO** ppInputTypes,   // optional
    DWORD* pcInputTypes,   // optional
    MFT_REGISTER_TYPE_INFO** ppOutputTypes,   // optional
    DWORD* pcOutputTypes,   // optional
    IMFAttributes** ppAttributes   // optional
);

パラメーター

名前	型	方向
clsidMFT	GUID	in
pszName	LPWSTR*	outoptional
ppInputTypes	MFT_REGISTER_TYPE_INFO**	outoptional
pcInputTypes	DWORD*	outoptional
ppOutputTypes	MFT_REGISTER_TYPE_INFO**	outoptional
pcOutputTypes	DWORD*	outoptional
ppAttributes	IMFAttributes**	outoptional

戻り値の型: HRESULT

各言語での呼び出し定義

// MFPlat.dll
#include <windows.h>

HRESULT MFTGetInfo(
    GUID clsidMFT,
    LPWSTR* pszName,   // optional
    MFT_REGISTER_TYPE_INFO** ppInputTypes,   // optional
    DWORD* pcInputTypes,   // optional
    MFT_REGISTER_TYPE_INFO** ppOutputTypes,   // optional
    DWORD* pcOutputTypes,   // optional
    IMFAttributes** ppAttributes   // optional
);

[DllImport("MFPlat.dll", ExactSpelling = true)]
static extern int MFTGetInfo(
    Guid clsidMFT,   // GUID
    IntPtr pszName,   // LPWSTR* optional, out
    IntPtr ppInputTypes,   // MFT_REGISTER_TYPE_INFO** optional, out
    IntPtr pcInputTypes,   // DWORD* optional, out
    IntPtr ppOutputTypes,   // MFT_REGISTER_TYPE_INFO** optional, out
    IntPtr pcOutputTypes,   // DWORD* optional, out
    IntPtr ppAttributes   // IMFAttributes** optional, out
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFTGetInfo(
    clsidMFT As Guid,   ' GUID
    pszName As IntPtr,   ' LPWSTR* optional, out
    ppInputTypes As IntPtr,   ' MFT_REGISTER_TYPE_INFO** optional, out
    pcInputTypes As IntPtr,   ' DWORD* optional, out
    ppOutputTypes As IntPtr,   ' MFT_REGISTER_TYPE_INFO** optional, out
    pcOutputTypes As IntPtr,   ' DWORD* optional, out
    ppAttributes As IntPtr   ' IMFAttributes** optional, out
) As Integer
End Function

' clsidMFT : GUID
' pszName : LPWSTR* optional, out
' ppInputTypes : MFT_REGISTER_TYPE_INFO** optional, out
' pcInputTypes : DWORD* optional, out
' ppOutputTypes : MFT_REGISTER_TYPE_INFO** optional, out
' pcOutputTypes : DWORD* optional, out
' ppAttributes : IMFAttributes** optional, out
Declare PtrSafe Function MFTGetInfo Lib "mfplat" ( _
    ByVal clsidMFT As LongPtr, _
    ByVal pszName As LongPtr, _
    ByVal ppInputTypes As LongPtr, _
    ByVal pcInputTypes As LongPtr, _
    ByVal ppOutputTypes As LongPtr, _
    ByVal pcOutputTypes As LongPtr, _
    ByVal ppAttributes As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

MFTGetInfo = ctypes.windll.mfplat.MFTGetInfo
MFTGetInfo.restype = ctypes.c_int
MFTGetInfo.argtypes = [
    ctypes.c_void_p,  # clsidMFT : GUID
    ctypes.c_void_p,  # pszName : LPWSTR* optional, out
    ctypes.c_void_p,  # ppInputTypes : MFT_REGISTER_TYPE_INFO** optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcInputTypes : DWORD* optional, out
    ctypes.c_void_p,  # ppOutputTypes : MFT_REGISTER_TYPE_INFO** optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcOutputTypes : DWORD* optional, out
    ctypes.c_void_p,  # ppAttributes : IMFAttributes** optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFTGetInfo = Fiddle::Function.new(
  lib['MFTGetInfo'],
  [
    Fiddle::TYPE_VOIDP,  # clsidMFT : GUID
    Fiddle::TYPE_VOIDP,  # pszName : LPWSTR* optional, out
    Fiddle::TYPE_VOIDP,  # ppInputTypes : MFT_REGISTER_TYPE_INFO** optional, out
    Fiddle::TYPE_VOIDP,  # pcInputTypes : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # ppOutputTypes : MFT_REGISTER_TYPE_INFO** optional, out
    Fiddle::TYPE_VOIDP,  # pcOutputTypes : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # ppAttributes : IMFAttributes** optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFTGetInfo(
        clsidMFT: GUID,  // GUID
        pszName: *mut *mut u16,  // LPWSTR* optional, out
        ppInputTypes: *mut *mut MFT_REGISTER_TYPE_INFO,  // MFT_REGISTER_TYPE_INFO** optional, out
        pcInputTypes: *mut u32,  // DWORD* optional, out
        ppOutputTypes: *mut *mut MFT_REGISTER_TYPE_INFO,  // MFT_REGISTER_TYPE_INFO** optional, out
        pcOutputTypes: *mut u32,  // DWORD* optional, out
        ppAttributes: *mut *mut core::ffi::c_void  // IMFAttributes** optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFTGetInfo(Guid clsidMFT, IntPtr pszName, IntPtr ppInputTypes, IntPtr pcInputTypes, IntPtr ppOutputTypes, IntPtr pcOutputTypes, IntPtr ppAttributes);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFTGetInfo' -Namespace Win32 -PassThru
# $api::MFTGetInfo(clsidMFT, pszName, ppInputTypes, pcInputTypes, ppOutputTypes, pcOutputTypes, ppAttributes)

#uselib "MFPlat.dll"
#func global MFTGetInfo "MFTGetInfo" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; MFTGetInfo clsidMFT, varptr(pszName), varptr(ppInputTypes), varptr(pcInputTypes), varptr(ppOutputTypes), varptr(pcOutputTypes), ppAttributes   ; 戻り値は stat
; clsidMFT : GUID -> "sptr"
; pszName : LPWSTR* optional, out -> "sptr"
; ppInputTypes : MFT_REGISTER_TYPE_INFO** optional, out -> "sptr"
; pcInputTypes : DWORD* optional, out -> "sptr"
; ppOutputTypes : MFT_REGISTER_TYPE_INFO** optional, out -> "sptr"
; pcOutputTypes : DWORD* optional, out -> "sptr"
; ppAttributes : IMFAttributes** optional, out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

出力引数:

#uselib "MFPlat.dll"
#cfunc global MFTGetInfo "MFTGetInfo" int, var, var, var, var, var, sptr
; res = MFTGetInfo(clsidMFT, pszName, ppInputTypes, pcInputTypes, ppOutputTypes, pcOutputTypes, ppAttributes)
; clsidMFT : GUID -> "int"
; pszName : LPWSTR* optional, out -> "var"
; ppInputTypes : MFT_REGISTER_TYPE_INFO** optional, out -> "var"
; pcInputTypes : DWORD* optional, out -> "var"
; ppOutputTypes : MFT_REGISTER_TYPE_INFO** optional, out -> "var"
; pcOutputTypes : DWORD* optional, out -> "var"
; ppAttributes : IMFAttributes** optional, out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "MFPlat.dll"
#cfunc global MFTGetInfo "MFTGetInfo" int, sptr, sptr, sptr, sptr, sptr, sptr
; res = MFTGetInfo(clsidMFT, varptr(pszName), varptr(ppInputTypes), varptr(pcInputTypes), varptr(ppOutputTypes), varptr(pcOutputTypes), ppAttributes)
; clsidMFT : GUID -> "int"
; pszName : LPWSTR* optional, out -> "sptr"
; ppInputTypes : MFT_REGISTER_TYPE_INFO** optional, out -> "sptr"
; pcInputTypes : DWORD* optional, out -> "sptr"
; ppOutputTypes : MFT_REGISTER_TYPE_INFO** optional, out -> "sptr"
; pcOutputTypes : DWORD* optional, out -> "sptr"
; ppAttributes : IMFAttributes** optional, out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; HRESULT MFTGetInfo(GUID clsidMFT, LPWSTR* pszName, MFT_REGISTER_TYPE_INFO** ppInputTypes, DWORD* pcInputTypes, MFT_REGISTER_TYPE_INFO** ppOutputTypes, DWORD* pcOutputTypes, IMFAttributes** ppAttributes)
#uselib "MFPlat.dll"
#cfunc global MFTGetInfo "MFTGetInfo" int, var, var, var, var, var, intptr
; res = MFTGetInfo(clsidMFT, pszName, ppInputTypes, pcInputTypes, ppOutputTypes, pcOutputTypes, ppAttributes)
; clsidMFT : GUID -> "int"
; pszName : LPWSTR* optional, out -> "var"
; ppInputTypes : MFT_REGISTER_TYPE_INFO** optional, out -> "var"
; pcInputTypes : DWORD* optional, out -> "var"
; ppOutputTypes : MFT_REGISTER_TYPE_INFO** optional, out -> "var"
; pcOutputTypes : DWORD* optional, out -> "var"
; ppAttributes : IMFAttributes** optional, out -> "intptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; HRESULT MFTGetInfo(GUID clsidMFT, LPWSTR* pszName, MFT_REGISTER_TYPE_INFO** ppInputTypes, DWORD* pcInputTypes, MFT_REGISTER_TYPE_INFO** ppOutputTypes, DWORD* pcOutputTypes, IMFAttributes** ppAttributes)
#uselib "MFPlat.dll"
#cfunc global MFTGetInfo "MFTGetInfo" int, intptr, intptr, intptr, intptr, intptr, intptr
; res = MFTGetInfo(clsidMFT, varptr(pszName), varptr(ppInputTypes), varptr(pcInputTypes), varptr(ppOutputTypes), varptr(pcOutputTypes), ppAttributes)
; clsidMFT : GUID -> "int"
; pszName : LPWSTR* optional, out -> "intptr"
; ppInputTypes : MFT_REGISTER_TYPE_INFO** optional, out -> "intptr"
; pcInputTypes : DWORD* optional, out -> "intptr"
; ppOutputTypes : MFT_REGISTER_TYPE_INFO** optional, out -> "intptr"
; pcOutputTypes : DWORD* optional, out -> "intptr"
; ppAttributes : IMFAttributes** optional, out -> "intptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFTGetInfo = mfplat.NewProc("MFTGetInfo")
)

// clsidMFT (GUID), pszName (LPWSTR* optional, out), ppInputTypes (MFT_REGISTER_TYPE_INFO** optional, out), pcInputTypes (DWORD* optional, out), ppOutputTypes (MFT_REGISTER_TYPE_INFO** optional, out), pcOutputTypes (DWORD* optional, out), ppAttributes (IMFAttributes** optional, out)
r1, _, err := procMFTGetInfo.Call(
	uintptr(clsidMFT),
	uintptr(pszName),
	uintptr(ppInputTypes),
	uintptr(pcInputTypes),
	uintptr(ppOutputTypes),
	uintptr(pcOutputTypes),
	uintptr(ppAttributes),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFTGetInfo(
  clsidMFT: TGUID;   // GUID
  pszName: PPWideChar;   // LPWSTR* optional, out
  ppInputTypes: Pointer;   // MFT_REGISTER_TYPE_INFO** optional, out
  pcInputTypes: Pointer;   // DWORD* optional, out
  ppOutputTypes: Pointer;   // MFT_REGISTER_TYPE_INFO** optional, out
  pcOutputTypes: Pointer;   // DWORD* optional, out
  ppAttributes: Pointer   // IMFAttributes** optional, out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFTGetInfo';

result := DllCall("MFPlat\MFTGetInfo"
    , "Ptr", clsidMFT   ; GUID
    , "Ptr", pszName   ; LPWSTR* optional, out
    , "Ptr", ppInputTypes   ; MFT_REGISTER_TYPE_INFO** optional, out
    , "Ptr", pcInputTypes   ; DWORD* optional, out
    , "Ptr", ppOutputTypes   ; MFT_REGISTER_TYPE_INFO** optional, out
    , "Ptr", pcOutputTypes   ; DWORD* optional, out
    , "Ptr", ppAttributes   ; IMFAttributes** optional, out
    , "Int")   ; return: HRESULT

●MFTGetInfo(clsidMFT, pszName, ppInputTypes, pcInputTypes, ppOutputTypes, pcOutputTypes, ppAttributes) = DLL("MFPlat.dll", "int MFTGetInfo(void*, void*, void*, void*, void*, void*, void*)")
# 呼び出し: MFTGetInfo(clsidMFT, pszName, ppInputTypes, pcInputTypes, ppOutputTypes, pcOutputTypes, ppAttributes)
# clsidMFT : GUID -> "void*"
# pszName : LPWSTR* optional, out -> "void*"
# ppInputTypes : MFT_REGISTER_TYPE_INFO** optional, out -> "void*"
# pcInputTypes : DWORD* optional, out -> "void*"
# ppOutputTypes : MFT_REGISTER_TYPE_INFO** optional, out -> "void*"
# pcOutputTypes : DWORD* optional, out -> "void*"
# ppAttributes : IMFAttributes** optional, out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。